RE: RFR: JDK-8041593: Update README-builds.html to refer to jdk9

[Iris Clark]

Hi, Erik.

> Bug: https://bugs.openjdk.java.net/browse/JDK-8041593
> Webrev: http://cr.openjdk.java.net/~erikj/8041593/webrev.root.01/

Great!

Thanks,
iris